Pneumatic tire tread and buttress



FIG. 1 is a front elevational view of a pneumatic tire tread and buttress showing our new design it being understood that the pattern is repeated uniformly throughout the circumference of the tread and buttress;

FIG. 2 is a left side perspective view thereof;

FIG. 3 is an enlarged fragmentary left side elevational view thereof;

FIG. 4 is a right side perspective view thereof;

FIG. 5 is an enlarged fragmentary right side elevational view thereof;

FIG. 6 is a front elevational view of a pneumatic tire tread and buttress showing a second embodiment of our new design it being understood that the pattern is repeated uniformly throughout the circumference of the tread and buttress and is skewed on the left half thereof relative to the right half wherein the grooves match;

FIG. 7 is a left side perspective view of FIG. 6; and,

FIG. 8 is a right side perspective view of FIG. 6.

The broken line showing of environmental structure in FIGS. 2, 4, 5, 7 and 8 of the drawing is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a pneumatic tire tread and buttress, as shown and described. 